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Diagnostic performance of CT for the detection of transmural bowel necrosis in non-occlusive mesenteric ischemia

  • Gastrointestinal
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A Correction to this article was published on 12 March 2021

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Abstract

Objectives

To evaluate the diagnostic performance of CT for transmural necrosis (TN) in non-occlusive mesenteric ischemia (NOMI) according to the bowel segment involved.

Methods

From January 2009 to December 2019, all patients admitted to the intensive care unit (ICU) and requiring laparotomy for NOMI were retrospectively studied. CT had to have been performed within 24 h prior to laparotomy and were reviewed by two abdominal radiologists, with a consensus reading in case of disagreement. A set of CT features of mesenteric ischemia were assessed, separating the stomach, jejunum, ileum, and right (RC) and left colon (LC). Univariate and multivariate analyses were performed to identify features associated with TN. Its influence on overall survival (OS) was assessed.

Results

Among 145 patients, 95 (66%) had ≥ 1 bowel segment with TN, including 7 (5%), 31 (21%), 43 (29%), 45 (31%), and 52 (35%) in the stomach, jejunum, ileum, RC, and LC, respectively. Overall inter-reader agreement of CT features was significantly lower in the colon than in the small bowel (0.59 [0.52–0.65] vs 0.74 [0.70–0.77] respectively). The absence of bowel wall enhancement was the only CT feature associated with TN by multivariate analysis, whatever the bowel segment involved. Proximal TN was associated with poorer OS (p < 0.001).

Conclusions

The absence of bowel wall enhancement remains the most consistent CT feature of transmural necrosis, whatever the bowel segment involved in NOMI. Inter-reader agreement of CT features is lower in the colon than in the small bowel. Proximal TN seems to be associated with poorer OS.

Key Points

The absence of bowel wall enhancement is the most consistent CT feature associated with transmural necrosis in NOMI, whatever is the bowel segment involved.

Inter-reader agreement is lower in the colon than in the small bowel in NOMI.

In NOMI, the more proximal the bowel necrosis, the worse the prognosis.

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Abbreviations

AMI:

Acute mesenteric infarction

ASAT:

Aspartate aminotransferase

AUC:

Area under the curve

CT:

Computed tomography

ICU:

Intensive care unit

LC:

Left colon

NAD:

Noradrenaline

NOMI:

Non-occlusive mesenteric ischemia

NPV:

negative predictive value

OMI:

Occlusive mesenteric ischemia

OS:

Overall survival

PPV:

positive predictive value

RC:

Right colon

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Correspondence to Paul Calame.

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The scientific guarantor of this publication is Eric Delabrousse.

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The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.

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One of the authors has significant statistical expertise (Paul Calame).

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• observational

• performed at one institution

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The original online version of this article was revised: Paul Calame is affiliated with two institutions.

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Verdot, P., Calame, P., Winiszewski, H. et al. Diagnostic performance of CT for the detection of transmural bowel necrosis in non-occlusive mesenteric ischemia. Eur Radiol 31, 6835–6845 (2021). https://doi.org/10.1007/s00330-021-07728-w

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  • DOI: https://doi.org/10.1007/s00330-021-07728-w

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